yes yes yes to getting a bolter, if available to look at it as a third opinion. Its a long way from where you live. I bought my panel in Orlando and almost pulled an empty trailer back home. Lots of times I wish I had....but over 20 grand and 6 years later I now wish I had left it!!!
TIME is on your side. I understand and agree with what has been said, and in the end if you are both happy then it's fair to the two of you.
Let him hold if a while and then check back in with the guy all the while keep looking.
Let us know how this plays out.